The outward movement of protons (H+),

Q: In a typical animal cell the concentrations of both Na+and K+ are higher outside of the cell than…

A: The membrane potential represents a balance among the equilibrium potentials of the ions to which…

Q: a. Simple Diffusion b. Facilitated diffusion by a channel protein c. Facilitated diffusion by a…

A: Introduction Diffusion is a process by which molecules or ions move from regions of higher to lower…

Q: Which of the following statements is TRUE of diffusion?     Diffusion of particles along the…

A: The molecules are transported from one region to another by the process of transportation.

Q: How do multicellular organisms overcome limitations of diffusion? Choose the most complete answer.…

A: The cells in multicellular organisms have various forms of transport mechanisms that allow them to…

Q: The sodium-potassium pump generates the following concentration gradients across the plasma…

A: Membrane potential also called transmembrane potential or membrane voltage is difference in electric…

Q: When the proteins of human gut epithelial cells adhere to each other so tightly that digestive…

A: Cell junctions are multiprotein structure that joins cells to each other. They help in cell to cell…

Q: Describe in details the processes of active transport, including the concepts of pumps, primary…

A: The passage of ions and molecules through the cell membrane from a lower concentration to a higher…

Q: Each answer can be used more than once, or not at all. - Simple Diffusion - Facilitated diffusion…

A: Introduction Diffusion is a process which involves the movement of molecules from a high…

Q: Which of the following are examples of diffusion (either passive or facilitated)? Glucose in the…

A: The process of diffusion is a passive, spontaneous process and occurs down the concentration…

Q: Which of the following statements is correct about passive facilitated diffusion? (select all that…

A: Diffusion is a process that results from the random motion of the molecules and results in a net…

Q: Which of the following is/are associated with passive (facilitated) transport?     Aquaporin…

A: Passive transport is the movement of  substances through a cell membrane without the requirement of…

Q: Which is the complete description of active transport? The movement of molecules from an area of…

A: Transport is process of movement of molecules from one region to another across plasma membrane.…

Q: This graph shows facilitated diffusion of a compound across a cytoplasmic membrane and into a cell.…

A: Diffusion is a process of passive transport in which molecules move from an area of higher…

Q: X Membrane proteins are necessary for active transport Y. Membrane proteins play a role in facitated…

A: For the movement of molecules or ions different transport systems are involved. These transport…

Q: What would happen in each of the following cases where something related to intracellular transport…

A: Peptide has two ends: the end with a free amino group is called the N-terminal amino acid residue.…

Q: The arrows indicate that SOLUTE X is permeable between compartments and the numbers indicate the…

A: Diffusion is a process by which a solute moves from high concentration moves to the area of low…

Q: When the protein integrin (a transmembrane protein in human fibroblasts) is held in place, by…

A: Integrins are heterodimeric cell surface receptors that are potential therapeutic targets for a…

Q: Which of the following factors influences the rate at which diffusion takes place? Size of…

A: The diffusion is the net movement of atoms, ions or molecules from a region of higher concentration…

Q: Which of the following is true about the movement of ions across excitable living membranes?   Ions…

A: Introduction :- The thin layer that forms the outer edge of a living cell or a cell compartment…

Q: If a solute to be transported across the plasma membrane is a much larger molecule than an ion or…

A: A semipermeable lipid bilayer makes up the plasma membrane. This membrane controls the flow of…

Q: Which of the following stimulus or stimuli may cause protein channels involved in membrane transport…

A: A channel protein is special arrangement of amino acids which is embedded in the cell membrane…

Q: Which among the following defines GPI anchored proteins? 1)Integral proteins of the plasma membrane…

A: INTRODUCTION Glycophosphatidylinositol anchored proteins are microdomains seen in the plasma…

Q: The force driving simple diffusion is _____, while the energy source for active transport is _____.…

A: Simple diffusion is the process in which movement of particles takes place through the membrane…

Q: A cell has a membrane potential of -100 mV (more negative inside than outside) and has 1,000 times…

A: There will be facilitated diffusion of calcium ions into the cell as a result of the electrochemical…

Q: What is the difference between active transport and facilitated diffussion? Select one: O a. active…

A: Transport of molecules Or substances across a membrane may occur through different process based on…

Q: Which of the following is an example of active transport? Simple diffusion Protein pumps Facilitated…

A: a) Simple diffusion : It is the random movement of particles more probably of gases and liquid. This…

Q: During an investigation on membrane transport, a researcher exposed bacterial cells to different…

A: The cell membrane is a phospholipid bilayer molecule that surrounds the cell and is essential for…

Q: A cell creates a H+ gradient across a membrane- in other words, a situation is created were the…

A: Answer: PROTON GRADIENT = It is the concentration of H+ ions across the membrane where one side has…

Q: A transmembrane protein that can change conformation in response to an lonic charge/current and…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: When a cell is placed in a solution with a very low solute concentration,water diffuses into the…

A: Hi! As you have posted multiple questions, I will be answering only the first four for you. If you…

Q: Glucose enters the cell through a protein called a glucose transporter. It is an example of…

A: Glucose molecules cannot simply diffuse through the membrane but require a transport channel for its…

Q: Compare and contrast the following methods of a passing cell membrane in terms of movement with…

A: Simple and facilitated diffusion are the two types of diffusion. Diffusion is the process of…

Q: What transport mechanism is used when glucose moves in the proximal convoluted tubules of kidneys…

A: Glucose moves in the proximal convoluted tubules of kidneys using sodium ions, ATP, electrochemical…

Q: What is the difference between simple and facilitated diffusion? Facilitated by which type of…

A: Diffusion is the process of movement of a substance from the high concentration to low concentration…

Q: Simple and facilitated diffusion differ because _____________. simple diffusion requires the…

A: The process of movement of particles or ions across the semipermeable membrane from the region of…

Q: How is active transport different from simple diffusion? Both active transport and simple diffusion…

A: Often molecules are transported between cells via different means. This transportation is essential…

Q: In muscle, calcium moves from the cytoplasm to the sarcoplasmic reticulum by using active transport,…

A: Calcium ions help in the contraction and relaxation of muscles.

Q: The sodium channel and nuclear pore are two effective diffusion barriers. What is the major…

A: Facilitated diffusion process involves the movement of solutes along the concentration gradient.…

Q: A transmembrane protein has the following properties: it has two binding sites, one for solute A and…

A: Introduction :- Transmembrane proteins (TP) are integral membrane proteins that traverse the entire…

Q: Which of the following integral membrane protein is a special class of membrane rafts?a) Caveolinb)…

A: The cell's plasma membrane contains combinations of cholesterol, glycosphingolipids and protein…

Q: In your own words, describe one similarity and one difference between diffusion via channels (like…

A: Diffusion is the process where molecules move from higher concentration to a region of lower…

Q: You are viewing two samples of mammalian red blood cells (erythrocytes) under a microscope. One…

A: Solution=solute+ solvent Hypotonic solution='Hypo' means low/less and 'Tonic' means solutes. Hence…

Q: wo students are discussing the effect of concentration gradient on diffusion. Student A says, “The…

A: Diffusion is the movement of the particles and it usually occurs when there is a difference in the…

Q: When the nerves deliver a signal to contract, Ca++ (calcium ions) rush into the cell. The calcium…

A: The muscle contraction is dependent on  release of calcium ions from internal stores, which is…

Q: Which of the following statements are correct? P. Plasma membrane is highly impermeable to all…

A: The plasma membrane is a lipid bilayer membrane which surrounds the cells. The membrane is…

Q: In the diffusion of dye in water experiment, what variable did we test for that affected rate of…

A: Diffusion is a passive haulage operation. A single material continues to shift from a high…

Q: A transmembrane protein has the following properties: it has two binding sites, one for solute A and…

A: Introduction :- Conformational changes in single polypeptides are caused by changes in main chain…

Q: In which situation would passive transport not use atransport protein for entry into a cell?a. water…

A: Introduction  The cell is bounded by the membranous structure which does not allow the molecules to…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.